纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | H3L |
Uniprot No | Q6NXT2 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-135aa |
氨基酸序列 | MARTKQTARKSTGGKAPRKQLATKAARKSTPSTCGVKPHRYRPGTVALREIRRYQKSTELLIRKLPFQRLVREIAQDFNTDLRFQSAAVGALQEASEAYLVGLLEDTNLCAIHAKRVTIMPKDIQLARRIRGERA |
预测分子量 | 15,2 kDa |
蛋白标签 | His tag N-Terminus |
缓冲液 | PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300. |
稳定性 & 储存条件 | Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months. |
复溶 | Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
以下是关于H3L重组蛋白的模拟参考文献示例(非真实文献,仅供格式参考):
1. **文献名称**: "Immunogenicity of recombinant H3L protein in a murine model of vaccinia virus infection"
**作者**: Smith J, et al.
**摘要**: 研究通过大肠杆菌表达系统制备重组H3L蛋白,并在小鼠模型中评估其免疫原性。结果显示,H3L联合佐剂可诱导高水平中和抗体,显著降低病毒载量,提示其作为天花疫苗候选的潜力。
2. **文献名称**: "Structural characterization of the H3L protein from monkeypox virus and its cross-reactive antibody response"
**作者**: Zhang L, et al.
**摘要**: 通过冷冻电镜解析猴痘病毒H3L蛋白的构象表位,发现其与牛痘病毒H3L高度同源。实验证明,重组H3L蛋白免疫兔血清可交叉中和不同正痘病毒,为广谱疫苗设计提供依据。
3. **文献名称**: "Comparative evaluation of H3L and A27L recombinant proteins as subunit vaccines against orthopoxviruses"
**作者**: Gupta R, et al.
**摘要**: 比较H3L与A27L重组蛋白的免疫保护效果。在恒河猴攻毒实验中,H3L单独免疫组的中和抗体效价较A27L组更高,且联合使用两蛋白可协同增强T细胞应答。
4. **文献名称**: "High-yield production and purification of H3L extracellular enveloped virion antigen for serological diagnostics"
**作者**: Kim S, et al.
**摘要**: 开发昆虫细胞表达系统高效制备H3L重组蛋白,优化纯化工艺后应用于ELISA检测。临床样本验证显示,H3L抗原对天花疫苗接种者血清的检出灵敏度达98%。
注:以上为模拟内容,实际文献需通过学术数据库检索确认。若需真实文献,建议使用关键词“H3L recombinant protein vaccinia/monkeypox”在PubMed或Web of Science中查询。
The H3L recombinant protein is a key antigenic component derived from the vaccinia virus, a member of the Orthopoxvirus genus closely related to the variola virus responsible for smallpox. The H3L gene encodes a major envelope protein critical for viral morphogenesis and infectivity. This 37-40 kDa protein is highly conserved across orthopoxviruses, making it a strategic target for vaccine development and immunological studies.
Recombinant H3L is produced through genetic engineering, where the H3L gene is cloned and expressed in heterologous systems like Escherichia coli or mammalian cell cultures. This allows large-scale, safe production without handling live viruses. Structurally, H3L contains immunodominant epitopes that trigger robust neutralizing antibody responses, essential for protective immunity against poxvirus infections.
Research on H3L gained momentum post-smallpox eradication due to its potential in next-generation vaccines. Unlike traditional live vaccines, recombinant H3L-based subunit vaccines aim to reduce side effects while maintaining efficacy. It is also pivotal in diagnostic tools, enabling antibody detection in vaccinated or exposed individuals. Additionally, H3L serves as a model to study host-pathogen interactions, particularly viral entry mechanisms and immune evasion strategies.
Recent zoonotic outbreaks of monkeypox have reignited interest in H3L, as cross-reactive immunity between orthopoxviruses could inform pan-poxvirus countermeasures. Furthermore, its role in biodefense research underscores its importance in preparedness against potential smallpox re-emergence. Studies continue to explore adjuvants and delivery systems to enhance H3L’s immunogenicity, bridging gaps between experimental data and clinical applications. Overall, H3L recombinant protein remains a cornerstone in advancing poxvirus therapeutics, diagnostics, and fundamental virology.
在生物科技领域,蛋白研发与生产是前沿探索的关键支撑。艾普蒂作为行业内的创新者,凭借自身卓越的研发实力,每年能成功研发 1000 多种全新蛋白,在重组蛋白领域不断突破。 在重组蛋白生产过程中,艾普蒂积累了丰富且成熟的经验。从结构复杂的跨膜蛋白,到具有特定催化功能的酶、参与信号传导的激酶,再到用于免疫研究的病毒抗原,艾普蒂都能实现高效且稳定的生产。 这一成就离不开艾普蒂强大的技术平台。我们构建了多元化的重组蛋白表达系统,昆虫细胞、哺乳动物细胞以及原核蛋白表达系统协同运作。不同的表达系统各有优势,能够满足不同客户对重组蛋白的活性、产量、成本等多样化的需求,从而提供高品质、低成本的活性重组蛋白。 艾普蒂提供的不只是产品,更是从源头到终端的一站式解决方案。从最初的基因合成,精准地构建出符合要求的基因序列,到载体构建,为蛋白表达创造适宜的环境,再到蛋白质表达和纯化,每一个环节都严格把控。我们充分尊重客户的个性化需求,在表达 / 纯化标签的选择、表达宿主的确定等方面,为客户量身定制专属方案。 同时,艾普蒂还配备了多种纯化体系,能够应对不同特性蛋白的纯化需求。这种灵活性和专业性,极大地提高了蛋白表达和纯化的成功率,让客户的研究项目得以顺利推进,在生物科技的探索道路上助力每一位科研工作者迈向成功。
艾普蒂生物自主研发并建立综合性重组蛋白生产和抗体开发技术平台,包括: 哺乳动物细胞表达平台:利用哺乳动物细胞精准修饰蛋白,产出与天然蛋白相似的重组蛋白,用于药物研发、细胞治疗等。 杂交瘤开发平台:通过细胞融合筛选出稳定分泌单克隆抗体的杂交瘤细胞株,优化后的技术让抗体亲和力与特异性更高,应用于疾病诊断、免疫治疗等领域。 单 B 细胞筛选平台:FACS 用荧光标记和流式细胞仪快速分选特定 B 细胞;Beacon® 基于微流控技术,单细胞水平捕获、分析 B 细胞,挖掘抗体多样性,缩短开发周期。 凭借这些平台,艾普蒂生物为客户提供优质试剂和专业 CRO 技术服务,推动生物科技发展。
艾普蒂生物在重组蛋白和天然蛋白开发领域经验十分丰富,拥有超过 2 万种重组蛋白的开发案例。在四大重组蛋白表达平台的运用上,艾普蒂生物不仅经验老到,还积累了详实的成功案例。针对客户的工业化生产需求,我们能够定制并优化实验方案。通过小试探索、工艺放大以及条件优化等环节,对重组蛋白基因序列进行优化,全面探索多种条件,精准找出最契合客户需求的生产方法。 此外,公司还配备了自有下游验证平台,可对重组蛋白展开系统的质量检测与性能测试,涵盖蛋白互作检测、活性验证、内毒素验证等,全方位保障产品质量。 卡梅德生物同样重视蛋白工艺开发,确保生产出的蛋白质具备所需的纯度、稳定性与生物活性,这对于保障药物的安全性和有效性起着关键作用 ,与艾普蒂生物共同推动着行业的发展。
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